Manfred, it is interesting that you said that my lights would be only good for table top shots with long exposures. That seems to be case. Here is a link to Amazon showing what I have.
http://www.amazon.com/CowboyStudio-P...raphy+lighting
I bought it because I thought I might try some still photography in my basement over the winter. I did need a tripod with longer exposures for all the still life shots I tried. Here is an example with a shutter speed of 1/20 and a relatively high ISO. (Since it was on a tripod, I now realize I should have just dropped the ISO and lengthened the shutter speed.)
_DSC1508 by
Soo J, on Flickr
Anyway, It is now apparent to me that these lights will only be useful for still life pictures which is OK as that is why I bought them in the first place and they were a relatively small investment. For people shots, I will have to look into an entirely different set-up. I will definitely come to this forum for advice when that time comes. For now, I will limit my portraits to natural settings outdoors or using a large window and reflectors.